<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Document</title>
    <style> 
        .box {
            position: absolute;
            width: 20%;
            height: 20%;
            background-color: skyblue;
            margin:10%;
            float: left;
            }
    </style>
</head>
<body>
    <div class="box"></div>
    <script src="./echarts.min.js"></script>
    <Script src = "./index.js"></Script>
</body>
</html>